<form>
    <div class="input-append">
        <input class="span5" type="text">
        <button class="btn tooltip-bottom" type="button" title="Выбор региона поиска">Симферополь<b class="caret"></b></button>
        <button class="btn btn-primary tooltip-bottom" type="submit" title="Искать"><i class="icon-search icon-white"></i></button>
    </div>
</form>